TY - JOUR
T1 - Techno-enviro-economic analysis of second-generation bioethanol at plant-scale by different pre-treatments of biomass from palm oil waste
AU - Priadi, Hasbi
AU - Awad, Sary
AU - Villot, Audrey
AU - Andres, Yves
AU - Purwanto, Widodo Wahyu
N1 - Publisher Copyright:
© 2023
PY - 2024/1
Y1 - 2024/1
N2 - This study evaluates three pathways: supercritical water treatment (SCW), CO2-water (scCO2-H2O), and catalytic hydrothermal hydrolysis (CHH) to produce second-generation bioethanol using palm tree fronds (PTF) as feedstock. The analysis focuses on technical performances using process simulation with Aspen Plus™, environmental evaluation by applying a Life Cycle Assessment (LCA) framework and an economic analysis using the levelized cost. The results of the technical performances reveal CHH as the best pathway for bioethanol production, with the highest ethanol yield at 273 L/tonne dry PTF and a substantial NER of 2.2, outperforming SCW and scCO2-H2O. From an environmental evaluation, CHH reveals lower carbon footprints of 61 g CO2 per MJ. Economically, CHH is competitive, with an ethanol production cost of 1.11 $/L, comparable to the enzymatic hydrolysis process. These findings provide the technical, environmental, and economic aspects of a promising route for lignocellulosic bioethanol production while suggesting pathways for further optimisation for future research.
AB - This study evaluates three pathways: supercritical water treatment (SCW), CO2-water (scCO2-H2O), and catalytic hydrothermal hydrolysis (CHH) to produce second-generation bioethanol using palm tree fronds (PTF) as feedstock. The analysis focuses on technical performances using process simulation with Aspen Plus™, environmental evaluation by applying a Life Cycle Assessment (LCA) framework and an economic analysis using the levelized cost. The results of the technical performances reveal CHH as the best pathway for bioethanol production, with the highest ethanol yield at 273 L/tonne dry PTF and a substantial NER of 2.2, outperforming SCW and scCO2-H2O. From an environmental evaluation, CHH reveals lower carbon footprints of 61 g CO2 per MJ. Economically, CHH is competitive, with an ethanol production cost of 1.11 $/L, comparable to the enzymatic hydrolysis process. These findings provide the technical, environmental, and economic aspects of a promising route for lignocellulosic bioethanol production while suggesting pathways for further optimisation for future research.
KW - Catalytic hydrothermal hydrolysis
KW - Palm tree frond
KW - Second-generation bioethanol
KW - Simulation
KW - Techno-enviro-economic assessment
KW - Thermochemical conversion
UR - http://www.scopus.com/inward/record.url?scp=85182398901&partnerID=8YFLogxK
U2 - 10.1016/j.ecmx.2023.100522
DO - 10.1016/j.ecmx.2023.100522
M3 - Article
AN - SCOPUS:85182398901
SN - 2590-1745
VL - 21
JO - Energy Conversion and Management: X
JF - Energy Conversion and Management: X
M1 - 100522
ER -
